Type-writing machine.



A. G. KUPETZ. TYPE WRITING MACHINE. APPLICATION FILED Nov. I8, 1913.

Patented June 6, 1916.

2 SHEETS-SHElTI.

. g I WITNESSES: l W

' ATTOR Y A. G. KUPETZ.

TYPE WRITING MACHINE.

APPLICATION FILED NOV. 18, I913- l,186,516. Patented June 6,1916. v g 472 SHEETSSHEET 2- 1 INVENTO-R:

UNITED STATES PATENT OFFICE.

ADOLP'H G. KUPETZ, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS,TO UNDERWOOD COMPUTING MACHINE COMPANY, OF NEW YORK, N; Y., A CORPORA-TION OF NEW YORK.

TYPE-WRITING MACHINE.

Specification of Letters. Iatent.

Patented June 6, 1916.

Application filed November 18, 1913;. Serial No. 801,579.

lowing is a specification.

My invention relates to means for returning the carriage of atypewriting machlne vor a combined typewriting and computing machine tobegin a new line.

A feature of the invention is the provision of means to automaticallyapply the driving power of a return motor to return the carriage when itreaches the end of its travel in letter-feed direction, the limit oftravel being variable by means of the usual adjustable margin stop.

Another feature of the invention relates to the pneumatic buffer devicefor effecting an easy stop of the carriage at the comple- LY tion of itsreturn movement, said buffer device connected to the adjustableright-hand margin stop and thereby automatically adjusted to insure auniform action for all stopping positions of the carriage.

An electric motor may be connected through a belt to a line-space leverfor returning the carriage and imparting linespace rotations to theplaten. The operation of the motor is controlled by a switch, which maybe actuated by a rock shaft and intermediate connections, said rockshaft journaled in the machine frame in front of and parallel with theplaten, and having fixed thereto a parallel rack along which isadjustable the usual left-hand margin stop slidably mounted on the rockshaft. Said margin stop carries a cam in the path of a cooperating camon the traveling carriage, the cam on the carriage operating to swingthe rock shaft .and close the switch to start the motor, to effect thereturn movement.of the carriage. The automatic return of the carriage isuseful, for instance, in tabular work where the last figures orcharacters of the written lines are in a vertical column, or Whereverthe Written characters are in vertical alinement at the right-hand sideof the worksheet.

To open the motor circuit when the carriage has about completed itsreturn travel, the right-hand margin stop has connected for ad uStmenttherewith a rock arm splmed on said rock shaft in position to beactuated by a cam on the carriage to rotate the rock shaft in thereverse direction, and thereby open the motor circuit. Immediately afterthe circuit is opened, a lug on the carriage engages the plunger of apneumatic buffer connected to the margin stop and effects an easyslowing down andstopping of the carriage. The return motor is alsomanually controlled and may be operated to return the carriage from anyposition by means of a finger-key. which may be connected through a tripto a vertical plunger which rocks the said rock shaft controlling themotor switch, said trip automatically releasing the plunger when, thekey is depressed, thus permitting the plunger to return so that theswitch may be opened automatically and independently of the position ofthe key.

I do not claim as my invention, anything disclosed in the application ofFrederick A. Hart, Serial No. 641,117.

Other features and advantages will hereinafter appear.

In the accompanying drawings, Figure 1 is a perspective viewillustrating one form of my invention applied to an Underwoodtypewriting machine. Fig. 2 is a sectional side elevation view. Fig. 3is a detail elevation showing a key lever, plunger and trip for manuallyclosing the motor circuit. Fig. 4 is a fragmentary perspective viewshowing the left-hand margin stop and the means on the carriage foractuating the stop to close the motor circuit. Fig. 5 is a similar viewof the right-hand margin stop, and cooperating means for opening themotor circuit. Fig. 6 is a part sectional vlew of the pneumatic bufferand actuating means therefor.

A rotary platen 1- is fixed to an axle 2 journaled in a platen frame 3whlch may be shiftable to upper and lower casepositions in the carriage4. Type-bars 5 pivotedon a fulcrum rod 6 are adapted to. swing upwardlyand .rearwardly, to cause the types thereon to strike against the frontface of the platen. The types are actuated'by keys 7 pivoted at 8 andconnected through bell cranks 9 to the type-bars.

The carriage 1 may be driven in letter-feed direction by the usualcarriage spring (not shown), the movement being controlled byescapementmechanism comprising an escapement wheel 10 driven by a pinion 11meshing with. a rack 12 on the carriage. Es-

capement dogs 13 coiiperating with the wheel are oscillated by auniversal bar 14 actuated by shoulders 15 on the type-bars.

The platen 1 may be rotated either by hand-wheels 16, or the usualline-space mechanism comprising a line-spacing lever 17 pivoted at 18and having an arm to engage and move rearwardly a slide bar 19 to whichis pivoted a pawl 20 which drives a linespaceratchet wheel 21 fixed tothe'platen axle. The line-space lever, pawl andslide bar are returned by'a spring 22. I

In accordance with the present invention, the carriage is returned bymeans of an electric motor 23 connected through a belt 24 to thecarriage. One end of the belt is attached the rock shaft 42 to vary theright-hand,

to a winding drum or pulley 25 fixed t0 the motor shaft 26, the beltextending downwardly from the pulley 25 over a switch lever 27 aroundthepulley 28 carried by a bracket29, over guide rollers 30 and 31 on abracket 32 attached to the machine frame,

the end of the band being releasably at-.

tached at 33 to a link 34 pivoted'to a slide bar 35, the free end ofwhich is upturned to engage the line-space lever 17.. The switch lever27 controls an automatic take up mechanism which may be contained withinthe casing 36, to take up slack in the .belt 24 when the carriage isreturned by hand. Such mechanism, however, is not a part of the presentinvention. i

The motor 23 -may be connected to any suitable source of power supply,as by means of a plug 37. A switch 38. in the motor circuit andcontrolling the operation of the motor, comprises a' stationary contact39 and a movable contact carried by-a spring-actuated switch lever 40mounted on a pivot 41. The

switch v38 is controlled through a rock shaft 42 in front of thecarriage and parallel therewith, said shaft j ournaled at its ends inthe machine frame. I

' The left-hand margin stop 43, which may be of usual construction, isadjustable along margin of the work-sheet or the position from which thecarriage is returned, and

bar 44 parallel with the rod 42 and fixed to said rod soas toswing-therewith. The stop; 43 may comprise a dog 45 to engage the teethof rack bar 44 and is actuated by a finger lever 46 to permit adjustmentof the stop..

Fixed to the rack; bar '44 and extending downwardly therefrom is an arm47, the lower end of which is operatively connected to the forward endof a rod 48, the rear end of which is upturned to engage behind a finger49 on the switch lever 40, and normally hold the switch open, the rod 48being slidably mounted in stationary brackets 50.

The front rail 51. of the carriage'has a block 52 formed thereon inwhich is housed a guide roller. running on a guide rail 67 and swingsthe arm 64 downwardly, thereby rocking the shaft 42, to swing the the,depending arm 47 rearwardly, carrying 76 v with it the rod 48, andpermits the switch 38 to close, thereby establishing a circuit for themotor which is thus started, and winds the belt 24 on the drum 25,thereby operating through the slide bar 35, to actuate the line-spacemechanism and return the carriage.

The motor" circuitis opened and the carriage is stopped by means ofmechanism as sociated with the right-hand margin stop 58. This stop isalso slid'ably mounted on the rock shaft 42 and comprises a holding dog59 in the form of a bell crank pivoted at 60 (Fig. '6), and having alaterally projecting arm 61 to'engage the rack 62 formed on the guiderail 54, said dog actuated by a fingerpiece 63. The stop 58 is looselymounted on the rock shaft 52 for longitudinal adjustment and also topermit said'shaft to rock independently of the stop. Also mounted on therock shaft 42 and adjustable longitudihally thereof is an arm 64 whichis held- .against rotation independent of the shaft 42,

as by means of a screw 65 engaging a groove 66 in the shaft 42. Saidarm. 64 carries a cam 67 in the path of a lug 68 on an arm 69 'fixed tothe block 52 on the carriage, so that as the carriage nears the limit.of its return movement, the lug '68 strikes the cam depending arm 47forwardly-to its initial position and through the rod 48 1ifting theswitch lever, 40 to open the motor circuit and stop the motor,Immediately after the motor circuit has thus been opened, the-dependingend. 56 of the arm 55 engages the end of a plunger 70 which works in acylinder 71 secured as by means of screws 72 to an arm 73 on-the marginstop 58. -The cylin der and plunger form a pneumatic cushioning deviceor dash-pot to absorb the momentum of the carriage and bring it'to'aneasy stop. As' the plunger is moved to the right in the cylinder 71, theair behind the plunger is compressed and gradually escapes through avent 74 in the end of the cylinder. The final stopping point for thecarriage. is determinedby themargin stop which may comprise a lug 58 -inthe path of a cotiperating stop on the carriage. The speed of.

' the. carriage is reduced by the buffer so that the lug 58 stops thecarriage without shock or jar.- A coil spring 75 returns the plungerwhen the latteris released from the carriage.

The return movement of the plunger is lim- 1ted by a stop pin 76 fixedin the cylinder in the path of astop screw 7 7 on the plunger rod,. saidpin 76 also forming a guide for theplungerrod. As the plunger cylinderis connected with the margin stop 58 and .is therefore adjustedtherewith, it is automatically maintained in a given relation to theswitch-actuating arm 64 and also to the stop lug 58,- sothattheaction ofthe buffer is always the same regardless of the position to which themargin stop maybe adjusted.

The arm 64 and stop 58 are held against relative movement along the rockshaft 42 by a bracket 78 (Fig. 5). In order to permit the arm 69 to passthe cam 67 withoutv rocking the arm 64. when the carriage is moved inletter-feed direction, said cam'is pivoted to the arm 64 and is swungback wardly withoutmoving the arm, the cam being held in operativeposition by a spring 79.

To permit the carriage to be returned by the motor from anyintermediate-position, the key lever -80 is provided: This lever carries,a key 81 which, when depressed,

' swings the lever about its pivot 82 and 0perates through a bell cranktrip lever 83 to lift a plunger rod 84, which extends be- I 'neath therack bar .44, and thereby swingsv therack bar upwardly and closes themotor switch 38. The trip lever 83 is pivoted at 85 to a clip 86 fixedto the rod 84. Said trip lever comprises a depending arm, the" lower endof which normally rests on a ledge 87 on the lever 80, and a horizontalarm which bears against a stop pin 88 on I the machine frame. 'Theplunger rod 84 returned by a spring 91. As the key lever extends freelythrough the lever 8(b and normally restson a stationary support 89. Whenthe key 81 is depressed, the trip 83 is moved upwardly carrying with itthe plunger 84, but the stop pin 88 at the same time forces the trip torotate on its pivot 85, thereby throwing the trip'ofi the key lever andreleasing the plunger from the key after the switch has been closed. Thekey lever, therefore, slips past the trip to theposition shown in. Fig.2. -A spring 90 attached at one end to the plunger and at the other endto the trip 83 returns the trip after the key 81 is released, said keybeing returns, it engages a collar 84* on the plunger 84 and insures thereturn of the plunger. The plunger rod 84 is of such length asto extendfrom the stop 89 to the rack bar 44 whenthe latter is in its normalposition, as shown in Fig. 3, but being free from the rack bar permitsthe control of the motor switch entirely independent of the.

key 81. The rock shaft 421s yieldingly held at either limit of itsrocking movements by means shown in Fig. 4, comprising a rock arm 92fixed to the shaft 42 and carrying a spring detent 93, to engage innaked in the machine frame, a rack bar con- .to said stop and adjustabletherewith a at either limit of its swinging movements.

Variations maybe resorted to within the scope of the inventiorjgt; andportions of the improvements may be used without others. Having thusdescribed my invention, I claim: a

detent openings 94, 95', when the shaft is' 1. In a typewriting machine,the combination with a carriage, a rotary platen, and line-spacemechanism to rotate the platen, of a rock shaft journaled in the machineframe parallel with the platen, a rack bar having a fixed connectionwith said shaft .to rock therewith, a margin stop slidably mounted foradjustment along said shaft and rack bar, an electric motor connected tooperate the line-space mechanism and drive the carriage, means connectedto and actuated bysaid rock shaft to establish a circuit for the motorwhen the rock shaft is rocked, and means on the carriage to engage saidstop and rock said rock shaft.

'2. In a typewriting machine, the combination with a carriage, of a rockshaft jour-' nected to rock with said shaft, amargin stop mounted onsaid rock shaft and adjustable along the rack bar, an electric motor, aswitch for the motor, means for'operating the switch when the shaft isrocked, and 00- operating means on the carriage and said margin stop forautomatically-rocking the shaft to establish a circuit for the motorwhen the carriage reaches a position determined by the position of themargin stop.

3. In a typewriting machine, the combination with a carriage, of astationary guide rail therefor, a rock shaft parallel with said guiderail, a margin stop adjustable along said rail and shaft, a bufferconnected member on the carriage in position to en l gage said'bufier asthe carriage nears its l limit of movement determined by said stop, anelectric motor to return the carriage, a-

forming an operating connection between the key lever and plunger, andmeansto automatically. actuatethe trip to release the plunger when saidkey lever has been actuated and thereby prevent interference beswitch inthe motor circuit, operating cona plunger to actuate said member, a'trip tweenthe key leverand said automatic 1 a 5. a typewriting machine,the combination with a carriage, of an adjustable margin stop, a rockshaft along which said stop is adjustable, a. rack bar connected to rockwith said shaft and cooperating with said stop to hold it in adjustedposition, an electric motor connected to drive the carriage, a switchcontrolling the motor circuit, means connected to said rock shaft toactuate the switch, a key lever, a plunger in position to engage saidrack bar, a trip lever pivoted to said plunger in position to engage thekey lever, and means to release said trip lever from the key lever whenthe latter is actuated.

' 6. In a typewriting machine, the combination with a carriage, of arocking member, stop devices adjustable along said member, camsadjustable with said stop devices, means on the carriage to engage saidcams and rock said member in opposite directions, an electric motorconnected to drive the carriage in one direction, a switch in the motorcircuit, and means between said switch and rocking member for actu atingrocked.

7.'In a typewriting machine, the combination with a carriage, of a rockshaft journaled in the machine frame and extending in the direction ofthe carriage travel, an

electric motor connected todrive the carriage in one direction, a switchin the motor circuit, connections between said switch and rock shaft foropening the switch when the shaft is rocked in one direction and closingthe switch when the shaft is rocked in the opposite direction, rock armson said shaft, and means on the carriage to engage said arms to rock theshaft in one direction as the carriage moves forwardly, and to rock theshaft in the reverse direction when the carriage is returned. 3

8. In a 'typewriting machine, the combination with a carriage, of a rockshaft journaled in thevmachine frame and extending in the direction ofthe carriage travel, an electric motor connected to drive the carriagein one direction, a switch in the motor circuit, connections betweensaidswitch and rock shaft for opening the switch when the shaft is rocked inone direction and closing the switch when the shaft is rocked in theopposite direction rock arms on said shaft,

-' means on the carrlage to engage said arms to rock the shaft in onedirection as the car- -riage -moves forwardly, and to rock the shaft inthe reverse direction when the carriage is returned and ,margin stopsconnected to said rock' arms and adjustable therewith in the directio ofthe carriage travel to variably limit the movement of the carriage inboth directions.

9. In .a machine of the character described, the combination with acarriage and port travel of the carriage and thereby cause the switchwhen said member is the carriage reaches a position in its letterfeedtravel determined by the adjustment ofsaid gage, to swing said support,connections between said support and the motor controller to actuatethelatter when said supis swung during the letter-feed the motor toreturn the carriage, and means operable automatically during the returnmovement of the carriage to swing said sup port in the oppositedirection, and thereby move the controller to inoperative position.

10. In a machine of the character described, the combination with -acarriage and a motor to return the carriage from the end of atypewritten line, of a controller for the motor, a margin gageadjustable in a direction longitudinally of the carriage to variablylimit the letter-feed travel of the carriage, a support on which saidgage is mounted, means operated by the carriage to swing said supportwhen the carriage reaches a position during its letterfeed traveldetermined by the adjustment of said gage, and connections between saidsupport and the motor controller operable by said swinging of the saidsupport to operate said controller and cause the motor to return thecarriage. v

'11. In a machine of the character de scribed, the combination with acarriage and a motor to return the carriage from the end of atypewritten line, of a controller for the motor, a margin gageadjustable in a direction longitudinally of the carriage to variablylimit the letter-feed travel of the-earriage, a support on which saidgage is mounted, means operated by the carriage to swing said, supportwhen the carriage reaches a position during its letter-feed traveldetermined by the adjustment of said gage, connections between saidsupport and the motor controller operable by said swing ing of the saidsupport to operate said controller and cause the motor to return thecarriage, and means operated by the carriage to return said support asthe carriage approaches the limit of its return movement, and therebyrestore the controller to release the carriage from the control of themotor.

12. Thecombination with a carriage and a machine frame, 'of an electricmotor to return the carriage from the end of a typewritten line,'a rackmounted on the machine frame to swing transversely to the direction ofthe carriage travel, a left-hand margin gage adjustable along said racktofdetermine the limit of movement of the vcarriage in letter-feeddirection, means on the carriage to swing said rack when thecarriagereaches a position determined by the adjustment of said gage, a switchin the motor .cir-

cuit, means operated by said swinging movea machine frame,of an electricmotor to return the carriage from the end of a typewritten line, a rackmounted on the machine frame to swing transversely to the direction ofthe carriage travel, aleft-hand margin gage adjustable along said rackto determine the limit ofmovement of the carriage in letter feeddirection, means on the carriage to swing said rack when the carriagereaches a position determined by the ad ustment of said gage, a switchin the motor circuit,

means operated by said swinging. -move-' ment. of said rack'to close theswitch and thereby energize the motor and ,cause it to return thecarriage, a right-hand margin;

gage adjustable longitudinally of the carriage to determine thestartingposition of the carriage, and means adjustable with saidright-hand gage and cooperating withmeans on the carriage to return saidswinging rack and open the switch when the carriage has reached aposition determined by the position of adjustment gin gage. a. d a

14. The combination 1 with a machine frame and a carriage mountedthereon to of said right-hand martravel in letterfeed direction, of amotor to return the carriage, a rack extending in the direction of thecarriage travel and mounted on the machine. frame to swing transverselyof the carriage, a left-handmargin gage adjustable along said rack todetermine the limit of travel of the carriage in. letter I feeddirection, a cam-on the carriage to engage said gage and swing the rack,,a switch in themotor clrcuit, means connected to said rack and operatedthereby to control the switch, the switch beingoperable to close themotor circuit when the rack is swung by said cam and therebyestablisha-circuit for the motor and cause the latter to return the carriage,means to return said rack'as the'carriage has about completed its returntravel and thereby open .themotor'switch, and detents to yieldingly holdthe ack in both said positlons.

15. The combination with a -machine* frame and a carriage mountedthereon -for letter-feed travel, of a motor ;to return the carriage, arock shaft journaled in the machine frame and extending parallel withthe .;direction of the carriage travel, a rack fixed to said rock shafttorock therewith, a mar- I gin gage adjustable along said rack toadjustably determine'the-limit of travel. of the carriage in letter-feeddirection, a cam on the carriage to swing said gage and thereby rocksaid shaft when the carriage reaches a position during its letter-feedtravel determined by the adjustment of said gage, a

switch-fin themotor circuit, means forming a connection-between theswitch and said rock shaft for controlling the switch, the switch beingclosed when said shaft 'is rocked, and a cam on the carriage to engagean arm on the rock shaft to rock the vlatter "duringthe returntravelof-the carriage. to-

open the motor switch. d j I 16. In a typewriting machine, thecombination. with a carriage, a platen thereon,-

and line-spacing mechanism-to rotate the platen, of a motor connected tooperate said line spacin'g mechanism and to return the carriage, arock-shaft extending in the direcs.

gin gage adjusta leto variably limit the tion of the carria e travel, aleft-handmar letter-feed travel of the carriage, a righthand margin,gage adjustable. to variably 7 limit the return travelof the carriage,said gages each adjustable longitudinally of the carriage, armsconnected to rock said shaft,

one of said arms connected with vthe left-.

hand margin gage for'adjustment therewith.

along said shaft, the other of said arms connected with the right-handmargin gage for ad ustment therewith along said shaft, cam

means on the carri-age to engage the arm ad ustable'with. the left-handmargin-.gage

and rock said-shaftin one direction during the letter-feed travel of thecarriage and to engage the 'armconnected with the right- ;hand gage androck said shaft in the reverse direction'during the return travel of thecarriage, and a switch in the motor circuit con- I I trolled b y said'rock shaft and operable to establish a circuit for the motor when saidshafti's rocked during the letter-feed travel of the carriage andoperated to open the motorcircuit when said shaft is rocked during thereturn travelof the carriage. I a

17. In a machine of the character dea stop, of a swinging support onwhich the stop is mounted. for adjustment longitudinally of'thecarriageto variably limit the travel of'the carriage, means to swingsaid a support asthe carri'agenear's the stopping position, an electricmotorfconneotions be 'j.

tween the motor andcarriage for'returning' theca'rriage-when themotor isactuated, a: I

normally open switch cout-rolling the motor, and means brought intoactivity by the swinging of said support to-automatically-closetheswitch and cause the motor to return the carriage.

I .18. In a typewriting machine, the coin-. i

a Y scribed, the combination w th a carr age and bination with acarriage and an electric motor to return the carriage from the end of aline of writing, of a switch in the motor circuit,.means to close saidswitch and cause the motor to return the carriage, a rock shaft thecombination with a carriage, of a motor ment of the carriage, of anelectric motor to drive the carriage in one direction, a stop to limitthe movement of the carriage in said direction, said stop adjustable inthe direction of the carriage travel to vary the stopping point of thecarriage, a controller for the motor, means to actuate said controller,comprising an arm adjustable with said stop, and means operated by thecarriage to swing said arm in a direction transverse to its direction ofadjustment with the stop and thereby actuatethe' controller to cut ofthe power supplied while the carriage is at a predetermined distance inadvance of the stopping point, determined by the adjustment of saidstop.

20. In a typewriting machine, the combination with a carriage having aletter-feed travel, and a motor to return the carriage, of a right-handmargin stop supported on. the machine frame and ad ustablelongitudinally of the carriage to determine the stopping position of thecarriage at the completion of its return movement, a controller for themotor, an actuator for said controller connected for adjustment withsaid margin stop, and means on the carriage to operate said actuator andthereby actuate said controller to cut off the power supply from thecarriage when the carriage is within a predetermined distance of itsstopping position determined by said stop.

21. In a machine of the classdescribed, the combination with a carriageand a margin stop adjustable longitudinally of the carriage to variablylimit the return moveto return the carriage, a switch in the motorcircuit, a switch-actuating device adjustable with said stop, and meanson the carriage to move said device transversely of the carriage andthereby open themotor circuit when the carriage reaches a predeterminedposition relative to the stop.

22; In a typewriting machine, the combi nation with a carriage having aletter-feed travel, and a motor to return the carriage, of a right-handmargin stop supported on a i,iso,5ie

for the motor, an actuator for said controller connected for adjustmentwith said margin stop, means on the carriage to 0perate said actuatorand thereby actuate said controller to cut off the power supply from thecarriage when the carriage is within a predetermined distance of itsstopping position determined by said stop, and a buffer adjustable withsaid stop and brought into operation after the power is cut off toeffect a gradual slowing down of the carriage so before it reaches itsstopping position.

23. The combination with a carriage and a motor for returning thecarriage from its position at the completion of a typewritten line, of aright-hand margin stop adjustas able in the direction of the carriagetravel to variably limit the return travel of the carriage, a rock shaftmounted in the machine frame and extending in the direction of thecarriage travel, a rock arm splined on said on shaft and connected withsaid stop for adjustment therewith. along the shaft, a cam on thecarriage to engage said arm and rock the shaft when the carriage hasreached a predetermined position during its return travel determined bythe adjustment of said stop, a controller for the motor, said rock shaftconnected to operate said controller and cut off the power when saidrock arm is rocked, a buffer comprising a member connected to the marginstop, and a movable member positioned to be engaged by the carriageafter the power has been cut off, and effect a gradual slowing down ofthe carriage before the final stop position is reached.

24. In a typewriting machine, the combi nation with a carriage, of anelectric motor to return the carriage, a switch to control the motor,means to automatically close the switch when the carriage reaches itslimit of travel in letter-feed direction and cause the motor to returnthe carriage, means to automatically open the switch, a manual key toclose the switch and effect the return of the 116 of the key when thekey has been operated to close the switch. 120

25. In a typewriting machine, the combination with a carriage, a-rotaryplaten, and line-space mechanism to rotate the platen, of a motor, amo-torcontrolling device automatically actuated when the carriage 12'reaches its limit of travel in letter-feed direction to cause the motorto actuate the line-space mechanism and return the carriage, means toactuate said controlling device to release the carriage from the controlof the motorwhen the carriage has returned, a key to operate saidcontrolling device and thereby effect the operation of the line-spacemechanism and return of the carriage by.

said motor from any intermediate position, and a trip device operated bythe key to re lease the said controlling device from the key while thekey is held in operatje'd position.

26. In a typewriting machine, the combination with a carriage, a platen,and linespace mechanism, of an electric motor, a connection between themotor and said linespace mechanism to operate said mechanism and returnthe carriage when the motor is energized, a switch in the motor circuit,mechanism for opening and closing the switch comprising means toautomatically close said switch when the carriage reaches its limit oftravel in letter-feed direction, and means to open the switch when thecarriage has returned, a key to actuate the switch-operating mechanismto close said switch when the carriage is in intermediate positions, anda trip device operated-by said key to take the switch-operatingmechanism out of the control of the key and permit the switch to beopened while the key is in operated position. a

27. The combination with a carriage movable in letter-feed direction,and an electric motor to return the carriage, of a switch in the motorcircuit, a device operable in one direction to close the switch andcause the motor to return the carriage, and operable in the reversedlrection to open the switch,

means operable automatically as the carriage nears-the limit of itsreturn travel to actuate said, 'device and open the motor switch,

'means" operable during the letter-feed travel of the carriage toautomatically actuate said device in a direction to close the motorcircuit, a key operable manually to actuate said device, and close themotor circuit, and means operated by said key to take said device out ofthe control of the key when the latter is operated, and thereby preventinterference between said key and the means for automatically openingthe switch.

28; Ina typewriting machine, the combination with a paper carriage, of amotor, means operable automaticallywhen the carriage reaches apredetermined position in its letter-feed travel tobring the motor intoactive relation to the carriage and cause the motor to return thecarriage, means to auto matically free the carriage from the control ofthe motor when the carriage has about completed its return movement, akey operable manually when the carriage is in any intermediate position.to bring the motor into active relation to the carriage for returningthe latter, and means to take the motor out of the control of thekey-when the latter has been operated and thereby prevent the key frominterfering with said freeing of the carriage from the control of themotor.

ADOLPH G. KUPETZ. Witnesses:

J. E. ALEXANDER, TITUS H. IRONS.

